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UPA 250 / UPA S 250 Submersible borehole pump

Submersible borehole pumpUPA 250 / UPA S 250

Single-stage or multistage single-entry centrifugal pump in ring-section design for vertical or horizontal installation. Mixed flow hydraulic systems with impellers that can be turned down. Optionally available with lift check valve or connection branch. For well diameters of 10 inches and above.
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Main Applications

  • Water supply systems
  • Spray irrigation systems
  • Mining
  • General irrigation systems

Technical Data

  • Max. head480 m
  • Min. head5 m
  • Max. allowed working pressure60 bar
  • Max. allowed fluid temperature60 °C

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  • High efficiencies through optimised hydraulic design
  • High operating reliability and a long service life by integrated sand separator, robust wear rings and enclosed pump bearings
  • Reliable operation by anti-jam lift check valve

Technical Data

  • FunctionPump
  • Connection typeInternal-thread connection,
  • Drive conceptWith electric actuator
  • Max. flow rate310 m³/h
  • Min. flow rate70 m³/h
  • Max. head480 m
  • Min. head5 m
  • Mains frequency60 Hz
  • Mains voltage230 V,
    380 V,
    400 V,
    415 V,
    460 V,
    500 V,
    690 V,
    1000 V
  • Casing materialX1NICRMOCU25-20-5,
  • Nominal pressurePN 63
  • Max. allowed working pressure60 bar
  • Suction behaviourNon-self-priming
  • Max. allowed fluid temperature60 °C
  • Min. allowed fluid temperature0 °C

Characteristic curves

Sectional Drawings

  • Download


Last change
Brochure Petrochemical Industry (0542.03_EN)PDF1.33/14/2022
Last change
UPA with Motors up to 1000 V Operating Voltage (3400.86_EN)PDF8.983/14/2022
Last change
UPA; 50 Hz (3400.5_EN)PDF31.983/14/2022
UMA; 50 Hz / 60 Hz (3455.51_EN)PDF3.983/14/2022
UMA-S (3455.52_EN)PDF6.253/14/2022

KSB - one of the world's leading manufacturers of industrial valves and pumps

Founded in 1871 in Frankenthal (Germany), KSB has been one of the leading suppliers of pumps and industrial valves for over 150 years. With more than 15,000 employees worldwide and its own sales and marketing, manufacturing facilities and service operations, KSB develops and produces custom-fit pumps for various applications.

As an experienced pump manufacturer, its product portfolio includes building and industrial technology, water transport, wastewater treatment and power plant processes. Thanks to innovative research and development, KSB can meet the most diverse requirements of customers. Benefit from many years of experience and technical expertise as a renowned pump manufacturer.

KSB pump manufacturers: the best solution for your plant
Industrial pumps and valves from KSB cover a wide range of applications and are highly energy-efficient. Products convince with the most innovative technology as well as with systems that have been tried and tested for many years - including the Etanorm water pump. Achieving more than 1.5 million sales worldwide, Etanorm is the most successful standard water pump. With KSB spare parts and services.

KSB ensures the operational reliability of its industrial pumps and valves. The KSB success formula for high-performance pumps lies in the technological strength in hydraulics, materials and automation.

Competent service right from the start
The numerous production facilities ensure that KSB as a pump manufacturer can guarantee customer proximity and first-class service. The experienced specialists are certified to ensure excellent quality and extensive experience. KSB Service takes care of the commissioning, inspection, servicing and maintenance of your pumps, valves and complete systems directly on site.  KSB also provide you with spare parts quickly. This means you get the best service directly from your pump manufacturer.